1029280 has 48 divisors (see below), whose sum is σ = 2782080. Its totient is φ = 352512.

The previous prime is 1029277. The next prime is 1029289. The reversal of 1029280 is 829201.

1029280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1029289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (57960).

2^1029280 is an apocalyptic number.

1029280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1029280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391040).

1029280 is an abundant number, since it is smaller than the sum of its proper divisors (1752800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1029280 is an equidigital number, since it uses as much as digits as its factorization.

1029280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1029280 is about 1014.5343759578. The cubic root of 1029280 is about 100.9666262312.

The spelling of 1029280 in words is "one million, twenty-nine thousand, two hundred eighty".